If the life of this world is an illusion, the period of greatest illusion occurs during youth. It is a period of high energy and great enthusiasm, coupled with an air of invincibility and perpetuity. Like the driver of a fast car, one may also develop a disdain for the slower cars on the highway of life. It is difficult to imagine that the car will run out of fuel and that one day the engine will wear out.
For the moment though the car is fast and it can go places! A fast car is dangerous if it does not have strong controls. And that is where Shaitan targets the vulnerable --- by loosening the controls.